* {
    margin: 0;
    padding: 0;
}

.title {
    font-size: 40px;
    color: blue;
}

.box {
    background-color: red;
    font-size: 30px;
    color: green;
}

.big-box {
    background: yellow;
    width: 500px;
    height: 100px;
}

.sm-box {
    width: 300px;
    height: 200px;
    background-color: gold;
    font-size: 30px;
    color: blue;
}

.test {
    color: firebrick;
}